Electro optical system manufactures machines, which uses laser-sintering method to manufacture complex plastic injection mould, cores and cavity fully automatically in a few hours directly from a cad data in hard steel material. By this, the automotive oem manufacturers can produce complex plastic parts for prototype production for different functional testing. The automotive component suppliers can also use this machine to manufacture complex core, cavity inserts for mass production. Typically any type of complex injection moulds can be manufactured within one to two weeks. This machine will help in bringing much faster to the market at a reasonable cost. Applications are in automotive, automotive ancillaries, electronics, etc.